Hoegaarden Astronomy & Photography
After cleaning & collimation, I tested the C11 with the Starizona F 7.2 reducer, the ASI183mm (way oversampled obviously), and guiding using a simple external 8×50 guider and the ASI290MC. Just as a test not bad. I’m not convinced the mirror shift did not have influence in this image. Focusing was a pain, needed to be done manually.
In total 13 hours and 20 minutes of RGBHa frames, both 120s and 180s went into this picture. You can just about see the external halo surrounding the galaxy itself, and details in as well the core as in the spiral arms. Esprit120, ASI183mm, Baader HaRGB.
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